Shunt-type monitor design provides much more accurate real-time voltage and current draw measurement. 【Protect the batteries】With High and low capacity alarm functions, our battery monitor with shunt will alarm, and backlight and voltage value will flash simultaneously to protect the batteries from getting over-discharged. 【Fit for all battery】The batter tester is compatible with various battery types, including Lead Acid (AGM, GEL), Lithium Iron Phosphate, Lithium-ion, Nickel-metal hybrid. compatible with batteries operating at 12 volts, 24 volts, and 48 volts. 【Easy To read】Displays multiple electronic parameters, including Voltage, Current, Consumed Power, Battery Capacity, and battery degradation rate with a customized brightness high-definition Backlight Display.